Example usage for java.lang Thread.UncaughtExceptionHandler Thread.UncaughtExceptionHandler

Introduction

In this page you can find the example usage for java.lang Thread.UncaughtExceptionHandler Thread.UncaughtExceptionHandler.

Prototype

Thread.UncaughtExceptionHandler

Source Link

Usage

From source file:MainClass.java

public MainClass() {
    Container cp = getContentPane();
    JButton crasher = new JButton("Crash");
    cp.add(crasher);/*from w ww  .  j ava  2 s  . c o m*/
    crasher.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
            throw new RuntimeException("You asked for it");
        }
    });
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        public void uncaughtException(Thread t, Throwable ex) {
            System.out.println("You crashed thread " + t.getName());
            System.out.println("Exception was: " + ex.toString());
        }
    });
    pack();
}

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From source file:com.mbrlabs.mundus.editor.utils.Log.java

public static void init() {
    System.setErr(new ErrorStreamInterceptor(System.err));
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        @Override/* w w w . java2 s  .c  o m*/
        public void uncaughtException(Thread thread, Throwable throwable) {
            Log.exception(TAG, throwable);
            Log.fatal(TAG, "Uncaught exception occurred, error report will be saved");
            logFileWriter.flush();
        }
    });

    prepareLogFile();
}

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From source file:com.compomics.cell_coord.gui.controller.CellCoordController.java

/**
 * Initialize main controller.//from   ww w  .  j av  a  2  s .c  o  m
 */
public void init() {
    //set uncaught exception handler
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        @Override
        public void uncaughtException(Thread t, Throwable e) {
            LOG.error(e.getMessage(), e);
            showMessage("Unexpected error: " + e.getMessage() + ", application will exit", "unexpected error",
                    JOptionPane.ERROR_MESSAGE);
            // exit the application
            System.exit(1);
        }
    });

    // new frame instance
    cellCoordFrame = new CellCoordFrame();
    cellCoordFrame.setVisible(true);
    // at starter, show main panel with logo    
    getCardLayout().first(cellCoordFrame.getTopPanel());
    onCardSwitch();
    // init child controllers
    loadTracksController.init();
    initMainFrame();
}

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From source file:fusejext2.JextThreadFactory.java

@Override
public synchronized Thread newThread(Runnable r) {
    final String name = new StringBuilder().append(threadPrefix).append("[").append(count.getAndIncrement())
            .append("]").toString();

    Thread t = new Thread(r);

    t.setName(name);// w ww . ja  v  a2 s. c om

    t.setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        @Override
        public void uncaughtException(Thread t, Throwable e) {
            logger.severe(new StringBuffer().append("Uncaught Exception in thread ").append(name).append("\n")
                    .append(ExceptionUtils.getMessage(e)).append(", ")
                    .append(ExceptionUtils.getRootCauseMessage(e)).append("\n")
                    .append(ExceptionUtils.getFullStackTrace(e)).toString());
            logger.severe("Shutting down due to unexpected exception..");
            System.exit(23);
        }
    });

    logger.info("Created new Thread: " + name);

    return t;
}

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From source file:edu.umn.cs.spatialHadoop.util.Parallel.java

public static <T> List<T> forEach(int start, int end, RunnableRange<T> r, int parallelism)
        throws InterruptedException {
    Vector<T> results = new Vector<T>();
    if (end <= start)
        return results;
    final Vector<Throwable> exceptions = new Vector<Throwable>();
    Thread.UncaughtExceptionHandler h = new Thread.UncaughtExceptionHandler() {
        public void uncaughtException(Thread th, Throwable ex) {
            exceptions.add(ex);//www . j  a v a 2  s.c om
        }
    };

    // Put an upper bound on parallelism to avoid empty ranges
    if (parallelism > (end - start))
        parallelism = end - start;
    if (parallelism == 1) {
        // Avoid creating threads
        results.add(r.run(start, end));
    } else {
        LOG.info("Creating " + parallelism + " threads");
        final int[] partitions = new int[parallelism + 1];
        for (int i_thread = 0; i_thread <= parallelism; i_thread++)
            partitions[i_thread] = i_thread * (end - start) / parallelism + start;
        final Vector<RunnableRangeThread<T>> threads = new Vector<RunnableRangeThread<T>>();
        for (int i_thread = 0; i_thread < parallelism; i_thread++) {
            RunnableRangeThread<T> thread = new RunnableRangeThread<T>(r, partitions[i_thread],
                    partitions[i_thread + 1]);
            thread.setUncaughtExceptionHandler(h);
            threads.add(thread);
            threads.lastElement().start();
        }
        for (int i_thread = 0; i_thread < parallelism; i_thread++) {
            threads.get(i_thread).join();
            results.add(threads.get(i_thread).getResult());
        }
        if (!exceptions.isEmpty())
            throw new RuntimeException(exceptions.size() + " unhandled exceptions", exceptions.firstElement());
    }
    return results;
}

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From source file:com.spotify.helios.system.AgentStateDirConflictTest.java

@Before
public void setup() throws Exception {
    zk = new ZooKeeperTestingServerManager();
    dueh = Thread.getDefaultUncaughtExceptionHandler();

    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        @Override/*from  w w  w . j  a  v a  2 s .co  m*/
        public void uncaughtException(final Thread t, final Throwable e) {
        }
    });

    stateDir = Files.createTempDirectory("helios-agent-conflict-test");

    first = makeAgent("first");
    second = makeAgent("second");
}

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From source file:com.github.dozermapper.core.DozerBeanMapperTest.java

@Before
public void setUp() {
    // todo the test should be redesigned once DozerBeanMapper is immutable #434
    mapper = DozerBeanMapperBuilder.buildDefault();
    exceptions = new ArrayList<>();
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        public void uncaughtException(Thread t, Throwable e) {
            exceptions.add(e);/*from w  w w  . j a  v  a2 s.c om*/
        }
    });
}

---

From source file:com.apptentive.android.sdk.module.engagement.interaction.InteractionManager.java

public static void asyncFetchAndStoreInteractions(final Context context) {

    if (!isPollForInteractions(context)) {
        Log.v("Interaction polling is disabled.");
        return;/* ww w  .j a v a2 s .c  o m*/
    }

    if (hasCacheExpired(context)) {
        Log.d("Interaction cache has expired. Fetching new interactions.");
        Thread thread = new Thread() {
            public void run() {
                fetchAndStoreInteractions(context);
            }
        };
        Thread.UncaughtExceptionHandler handler = new Thread.UncaughtExceptionHandler() {
            @Override
            public void uncaughtException(Thread thread, Throwable throwable) {
                Log.w("UncaughtException in InteractionManager.", throwable);
                MetricModule.sendError(context.getApplicationContext(), throwable, null, null);
            }
        };
        thread.setUncaughtExceptionHandler(handler);
        thread.setName("Apptentive-FetchInteractions");
        thread.start();
    } else {
        Log.d("Interaction cache has not expired. Using existing interactions.");
    }
}

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From source file:org.apache.hadoop.hdfs.TestFileCreationEmpty.java

/**
 * This test creates three empty files and lets their leases expire.
 * This triggers release of the leases. 
 * The empty files are supposed to be closed by that 
 * without causing ConcurrentModificationException.
 *///  www.  j a  v  a2  s .  c om
public void testLeaseExpireEmptyFiles() throws Exception {
    final Thread.UncaughtExceptionHandler oldUEH = Thread.getDefaultUncaughtExceptionHandler();
    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        public void uncaughtException(Thread t, Throwable e) {
            if (e instanceof ConcurrentModificationException) {
                LeaseManager.LOG.error("t=" + t, e);
                isConcurrentModificationException = true;
            }
        }
    });

    LOG.info("testLeaseExpireEmptyFiles start");
    final long leasePeriod = 1000;
    final int DATANODE_NUM = 3;

    final Configuration conf = new HdfsConfiguration();
    conf.setInt(DFSConfigKeys.DFS_NAMENODE_HEARTBEAT_RECHECK_INTERVAL_KEY, 1000);
    conf.setInt(DFSConfigKeys.DFS_HEARTBEAT_INTERVAL_KEY, 1);

    // create cluster
    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(DATANODE_NUM).build();
    try {
        cluster.waitActive();
        DistributedFileSystem dfs = (DistributedFileSystem) cluster.getFileSystem();

        // create a new file.
        TestFileCreation.createFile(dfs, new Path("/foo"), DATANODE_NUM);
        TestFileCreation.createFile(dfs, new Path("/foo2"), DATANODE_NUM);
        TestFileCreation.createFile(dfs, new Path("/foo3"), DATANODE_NUM);

        // set the soft and hard limit to be 1 second so that the
        // namenode triggers lease recovery
        cluster.setLeasePeriod(leasePeriod, leasePeriod);
        // wait for the lease to expire
        try {
            Thread.sleep(5 * leasePeriod);
        } catch (InterruptedException e) {
        }

        assertFalse(isConcurrentModificationException);
    } finally {
        Thread.setDefaultUncaughtExceptionHandler(oldUEH);
        cluster.shutdown();
    }
}

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From source file:com.hp.mqm.atrf.Main.java

private static void setUncaughtExceptionHandler() {
    Thread.currentThread().setUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
        public void uncaughtException(Thread t, Throwable e) {
            logger.error(e.getMessage(), e);
        }/*from   w  w  w  .j  ava  2  s  . c om*/
    });
}

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